Free shipping on qualifying purchases of $99 or more. Exclusions apply
LockNLube Grease Coupler XL

LockNLube Grease Coupler XL

In stock
LockNLube Grease Coupler XL
Does Not Ship To:

LockNLube Grease Coupler XL

Meet the world's best selling locking grease coupler. Patented and sold from our HQ in New Hampshire, the original LockNLube® Grease Coupler is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to safely operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.

•   World's original locking grease coupler.
•   Rated up to 10,000 PSI.
•   1/8″ NPT thread. Compatible with all grease guns.
•   Works on all Zerk fittings, SAE and metric.
•   Easily releases from clogged grease fittings, even under pressure.



•   Max Pressure: 10,000 psi (390 Bar)

•   Zerk Compatibility: Fits all DIN and SAE specification Zerks (grease nipples).

•   Coupler Thread: 1/8" NPT female thread.

•   Dimensions: L: 3½ x W: ⅗ x H: 1⅗ In (L: 88 x W: 16.4 x H: 41 mm)

•   Diameter (front of coupler): 3/5 in (16 mm). Fits most recessed grease fittings (Zerks.) ~1mm larger than standard coupler.

•   Weight: 4 oz. (100 grams)

•   Grease Gun Compatibility: Works with all grease gun types: pneumatic, manual, and electric.

•   Seal: Durable nitrile rubber seal for longevity under high pressure.

•   Lock-on Mechanism: Four hardened steel jaws are resilient under high pressure. Patent protected.